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detect window’s focus

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Aug 06.2004

How can I detect if the window has the focus(current window) or not?Thanks

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JavaScript

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@gil_davisAug 06.2004 — You cannot detect focus. It is an event, not an attribute.
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@BillyRayAug 06.2004 — You can - at least in IE only ?

Use the "hasFocus" method:

if (document.hasFocus()) alert('Document has focus!');

You can read more here:

http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/methods/hasfocus.asp

However, you could do a cross-browser solution simply by trapping the window and doucment onfocus events, and setting a global variable to "true" (onblur it would be set to false).

Hope this helps,

Dan
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